Topic

Geomagnetism

1 question tagged Geomagnetism — spanning every one of the seven Ws.

whose

Whose theory first explained why Earth’s magnetic field reverses over geologic time?

Brunhes, Matuyama, and later geophysicists established the reversal record, but the geodynamo explanation is most associated with Edward Bullard and Walter Elsasser. The field is generated by fluid motion in the outer core.

GeologyGeomagnetism